JP2529358B2 - Heating box for microwave oven - Google Patents
Heating box for microwave ovenInfo
- Publication number
- JP2529358B2 JP2529358B2 JP63182351A JP18235188A JP2529358B2 JP 2529358 B2 JP2529358 B2 JP 2529358B2 JP 63182351 A JP63182351 A JP 63182351A JP 18235188 A JP18235188 A JP 18235188A JP 2529358 B2 JP2529358 B2 JP 2529358B2
- Authority
- JP
- Japan
- Prior art keywords
- heating box
- portions
- microwave oven
- extruded
- cut
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Description
【発明の詳細な説明】 産業上の利用分野 本発明は、複数枚の金属製部材を重合した調理機器に
用いられる内箱の接合部に利用し、接合部の強度を上げ
るために切断方向を規制することにより、一緒に切断絞
り出し加工をして、圧着カシメにて接合強度を確保する
とともに、接合部材料間を電気的に導通させ電波漏れを
効果的に解消することができる。また熱膨張による外れ
もなくカシメ強度も確保できる。TECHNICAL FIELD The present invention is used in a joint portion of an inner box used in a cooking device in which a plurality of metal members are polymerized, and a cutting direction is increased in order to increase the strength of the joint portion. By restricting, the cutting and squeezing process can be performed together, the bonding strength can be secured by the crimping caulking, and the electric waves can be effectively eliminated by electrically connecting the materials of the bonding portion. In addition, the caulking strength can be secured without any disconnection due to thermal expansion.
従来の技術 従来の電子レンジの加熱室においては、第７図に示す
ように、開口1aを有する前板１と、断面Ｕ型をなす底板
2,天板３および後板４の各々接合部2a,2b,2c,3a,3bに、
第８図に示す電気抵抗溶接（プロジェクション溶接，ス
ポット溶接）や、第９図に示す絞り出しカシメ等の加工
により、各構成部品を接合して加熱室を形成している。2. Description of the Related Art In a conventional microwave oven heating chamber, as shown in FIG. 7, a front plate 1 having an opening 1a and a bottom plate having a U-shaped cross section are provided.
2, at the joints 2a, 2b, 2c, 3a, 3b of the top plate 3 and the rear plate 4,
Each component is joined to form a heating chamber by the electric resistance welding (projection welding, spot welding) shown in FIG. 8 and the squeezing crimping shown in FIG.
発明が解決しようとする課題 ところが、このような接合方法では、樹脂塗料を塗布
した塗装鋼板や、樹脂の薄膜を表面に構成したラミネー
ト鋼板を使用することができないという問題があった。
すなわち、第８図の電気抵抗溶接の場合、溶接をする突
部３′と後板４の間の電気的導通を図るとともに天板３
と後板４の間に同時に所定圧力を加え、この間に瞬間的
な大電流を流し、材料自体の発熱によって溶接する方式
であるため、導通性のない塗膜を有する塗装鋼板は、事
実上使用できなかった。The problem to be solved by the invention However, such a joining method has a problem that a coated steel sheet coated with a resin coating or a laminated steel sheet having a resin thin film formed on the surface cannot be used.
That is, in the case of the electric resistance welding shown in FIG. 8, the electrical conduction between the projection 3'to be welded and the rear plate 4 is achieved and the top plate 3 is also provided.
Since a method of applying a predetermined pressure at the same time between the rear plate 4 and the rear plate 4 and applying a momentary large current during this, and welding by heat generation of the material itself, a coated steel plate having a non-conductive coating is practically used. could not.
また、第９図に示す絞り出しカシメの構成では、その
接合強度は、絞り出した後のカシメ部、すなわち天板３
と後板４のそれぞれのカシメ部３″,4″の押し広げ角度
と、それぞれの板の硬度によって決まるが、実際の加工
では、金型の形状も考慮されなければならないので押し
広げ角度にも限界があり、従って充分な接合強度が得ら
れないという問題があった。ましてや塗装皮膜を施した
塗装鋼板を使用した場合この皮膜がさらに、カシメ部間
に介在するため、著しく接合強度が低下するため、事実
上このような塗装鋼板は使用できないという問題があっ
た。Further, in the structure of the squeezed caulking shown in FIG. 9, the bonding strength is determined by the caulking portion after squeezing, that is, the top plate 3
It depends on the pushing and spreading angle of each caulking part 3 ″, 4 ″ of the rear plate 4 and the hardness of each plate, but in the actual processing, the shape of the mold must be taken into consideration. There is a limit, and therefore there is a problem that a sufficient bonding strength cannot be obtained. Furthermore, when a coated steel sheet coated with a coating film is used, the coating film is further interposed between the crimped portions, so that the joint strength is remarkably reduced, and there is a problem that such a coated steel sheet cannot be practically used.
本発明は、このような従来の問題点を解消するもので
あり、充分な接合強度が得られるとともに、塗装鋼板や
ビニール鋼板のような電気絶縁皮膜を施した鋼板でも使
用することができ、接合後は、その接合部分で確実な電
気的導通も得られると同時に、電波漏れを効果的に解消
させる結合方法であり、優れた調理機器の内箱を提供す
るものである。The present invention solves the above-mentioned conventional problems, and a sufficient joining strength can be obtained, and a steel sheet coated with an electric insulation film such as a coated steel sheet or a vinyl steel sheet can be used. After that, a reliable electrical connection can be obtained at the joint portion, and at the same time, a coupling method that effectively eliminates radio wave leakage, and provides an excellent inner box for a cooking appliance.
課題を解決するための手段 本発明は前記目的を達成するために下記構成とした。Means for Solving the Problems The present invention has the following constitution in order to achieve the above object.
すなわち、内部にマイクロ波を供給する複数個の金属
製部材よりなる加熱箱において、加熱箱は夫々の前記金
属部材を互いに接合する接合部と、前記接合部に設けら
れた複数個の機械的結合部および複数個の電気導通部と
を有し、前記複数箇の機械的結合部は複数枚の金属製部
材の接合部を重合し、相対向する２辺で切断した中間部
をその板厚方向に押し出し、この押し出した部分を圧縮
して形成すると共に、前記複数個の電気導通部は前記切
断した中間部の押し出しにより、夫々の金属製部材の切
断面と他の金属製部材の切断面とが接合して形成される
構成とした。That is, in a heating box composed of a plurality of metal members for supplying microwaves to the inside, the heating box has a joining portion for joining the respective metal members to each other and a plurality of mechanical couplings provided at the joining portion. Parts and a plurality of electrical conducting parts, the plurality of mechanical coupling parts are formed by superimposing a joint part of a plurality of metal members, and an intermediate part cut at two opposite sides thereof in a plate thickness direction thereof. And the compressed portion is formed, and the plurality of electrically conductive portions are extruded from the cut intermediate portion to form a cut surface of each metal member and a cut surface of another metal member. Are joined together to form.
また、複数個の電気導通部の近傍に、機械的結合部を
設けた構成とした。In addition, a mechanical coupling portion is provided near the plurality of electrical conducting portions.
また、接合部は加熱箱の奥行、幅、高さ方向の少なく
とも一辺に形成され、前記電気導通部は、この一辺の長
さ方向に平行に少なくとも２列配列した構成とした。Further, the joint portion is formed on at least one side in the depth, width, and height directions of the heating box, and the electric conducting portions are arranged in at least two rows parallel to the length direction of the one side.
また、前記複数個の電気導通部間に、機械的結合部を
設けた構成とした。In addition, a mechanical coupling portion is provided between the plurality of electrical conducting portions.
また、複数個の金属製部材の少なくとも一つは、耐腐
食性塗膜を施し、加熱箱の内側に配設して形成した構成
とした。Further, at least one of the plurality of metal members is formed by applying a corrosion resistant coating and disposing it inside the heating box.
また、複数個の電気導通部は、金属製部材の厚み部分
で構成した。Further, the plurality of electrical conducting portions are formed by the thickness portion of the metal member.
さらに複数枚の金属製部材の接合部を重合し、その重
合部の複数の箇所を相対向する２辺で切断し、切断した
中間部をその板厚方向に押し出すと共に、この押し出し
た部分を圧縮することにより前記金属製部材同志を結合
する方法とした。Further, the joints of a plurality of metal members are superposed, and the plural parts of the superposed parts are cut at two opposite sides, the cut intermediate parts are extruded in the plate thickness direction, and the extruded parts are compressed. By doing so, the metal members are joined together.
作用 この発明は、内部にマイクロ波を供給する加熱箱にお
いて、この加熱箱は複数個の金属製部材を、その各々の
接合部において互いに接合する構成とし、前記接合部の
複数箇所に相対向する２辺で切断した中間部をその板厚
方向に押し出し、かつ、この押し出し部分を圧縮する構
成としたので、夫々の金属製部材をこの圧縮により機械
的に接合することができる。また切断した中間部を押し
出したので夫々金属部材の切断部は押し出されない部分
の他の金属製部材の切断部と接合するので容易にかつ確
実に電気的導通部となる。Function The present invention relates to a heating box for supplying microwaves to the inside, wherein the heating box has a structure in which a plurality of metal members are bonded to each other at their respective joints, and the plurality of metal members are opposed to each other at a plurality of positions of the joints. Since the intermediate portion cut along the two sides is extruded in the plate thickness direction and the extruded portion is compressed, the respective metal members can be mechanically joined by this compression. Further, since the cut intermediate portions are extruded, the cut portions of the metal members are joined to the cut portions of the other metal members in the non-extruded portions, so that they easily and surely become the electrically conductive portions.
実 施 例 以下、本発明の一実施例の加熱箱を図面を参照して説
明する。Example A heating box according to an example of the present invention will be described below with reference to the drawings.
第１図（ａ）は、調理機器の一例として電子レンジ内
箱の部品構成を略図的に示す斜視図である。内箱は、複
数枚の塗装された塗装鋼板、すなわち前板5,天板6,底板
７および後板８から構成されている。天板６と底板７と
構成している胴部は、筒状の構成であり、天板６および
断面Ｕ型状の底板７からなる。前板５は、開口部5aが設
けられている。FIG. 1 (a) is a perspective view schematically showing a component structure of a microwave oven inner box as an example of a cooking appliance. The inner box is composed of a plurality of painted steel plates, that is, a front plate 5, a top plate 6, a bottom plate 7 and a rear plate 8. The body portion configured by the top plate 6 and the bottom plate 7 has a tubular configuration and includes the top plate 6 and the bottom plate 7 having a U-shaped cross section. The front plate 5 is provided with an opening 5a.
第１図（ｂ）は、天板６と底板７の接合部6a,7a,胴部
と後板８の接合部6b,7bを第１図で示す切断絞り出しカ
シメ加工後の内箱を示した斜視図である。またこの図に
は、詳しく示していないが、天板6,底板７および後板８
は片面が塗装された塗装鋼板が用いられており、それぞ
れ内面が塗装面側となるように切断絞り出しカシム加工
により接合されている。したがって、被調理物を収納す
る内面が塗装されており、他方の外面は塗膜を有しない
鋼板により形成されていることになる。Fig. 1 (b) shows the joints 6a, 7a of the top plate 6 and the bottom plate 7, and the joints 6b, 7b of the body part and the rear plate 8 shown in Fig. 1 after cutting, squeezing and caulking. It is a perspective view. Although not shown in detail in this figure, the top plate 6, the bottom plate 7 and the rear plate 8 are also shown.
Is a coated steel plate with one side coated, and is joined by cutting and squeezing so that the inner side is the coated side. Therefore, the inner surface for housing the food to be cooked is coated, and the other outer surface is formed of a steel sheet having no coating film.
第２図（ａ）〜（ｄ）は、天板６と後板８との接合部
分を示す部分切欠断面図である。天板６および後板８は
内面が塗膜6cおよび8aにより覆われている。切断絞り出
しカシメピッチＰはλ/4（λは電子レンジの使用電波の
波長）以下であり、切断方向は内箱の側面に沿って加工
する。2 (a) to (d) are partially cutaway sectional views showing a joint portion between the top plate 6 and the rear plate 8. As shown in FIG. Inner surfaces of the top plate 6 and the rear plate 8 are covered with coating films 6c and 8a. The cutting squeezing crimping pitch P is λ / 4 (λ is the wavelength of the radio wave used in the microwave oven) or less, and the cutting direction is processed along the side surface of the inner box.
第２図（ｂ）〜（ｄ）は、カシメ部の切欠断面図であ
り、切断絞り出しカシメ加工後、カシメ絞り出し幅Ｂ寸
法が Ｂ≧Ａ＋2/3（t1＋t2） になるように、カシメ圧着厚さＣ寸法を Ｃ≦0.8（t1＋t2） にし、さらに圧着深さＤ寸法を Ｄ≒t1＋t2 に設定することにより、確実な結合が図れるものであ
る。2 (b) to 2 (d) are cutaway sectional views of the caulking portion. After the cutting and squeezing caulking, the caulking squeezing width B dimension is B ≧ A + 2/3 (t 1 + t 2 ). By ensuring that the crimping thickness C dimension is C ≦ 0.8 (t 1 + t 2 ), and the crimping depth D dimension is D≈t 1 + t 2 , reliable coupling can be achieved.
ただし、Ａはパンチ切断幅,Bはカシメ絞り出し幅,Cは
カシメ圧着厚さ,Dはパンチ圧着深さ,Eはパンチ切断底長
さ,t1は天板６の板厚,t2は後板８の板厚である。Where A is the punch cutting width, B is the crimp squeezing width, C is the crimp crimping thickness, D is the punch crimping depth, E is the punch cutting bottom length, t 1 is the top plate 6 thickness, and t 2 is the rear The thickness of the plate 8.
また、パンチ切断底長さＥの両脇には、カシメ底部ハ
よりほぼ45゜の傾斜で立上る傾斜部ニを設けたため、切
断が容易になるとともに、確実な結合が得られる。Further, since both sides of the punch cutting bottom length E are provided with the inclined portions D which rise at an inclination of about 45 ° from the caulking bottom portion C, the cutting is facilitated and a reliable connection is obtained.
このようにすれば、複数枚の金属製部材の接合部を重
合し、相対向する２辺で切断した中間部をその板厚方向
に押し出し、かつ、この押し出した部分を圧縮して形成
した機械的結合部の４隅に、４ケ所の（t1×t2）の電気
導通部を確保できる。その結合部は、加熱箱の奥行，
幅，高さ方向の少なくとも一辺に形成され、電気導通部
は、この一辺の長さ方向に平行に２列配列する。そのた
め、内部にマイクロ波を供給する加熱箱において、この
加熱箱の内隅辺から外側方向の電波漏れに対して、電気
導通ピッチがλ/4−（Ｅ＋2t1）、電波透過方向に２列
Ａピッチ配列しているため、塗膜の発熱焼けに基づく電
波漏れを効果的に減衰させることができる。また熱膨張
による外れもなく、カシメ強度を確保できる。By doing so, a machine formed by superposing the joint portions of a plurality of metal members, extruding the intermediate portion cut at two opposite sides in the plate thickness direction, and compressing the extruded portions It is possible to secure four (t 1 × t 2 ) electrical conducting portions at the four corners of the static coupling portion. The joint is the depth of the heating box,
The electric conducting portions are formed on at least one side in the width and height directions, and the electric conducting portions are arranged in two rows parallel to the length direction of the one side. Therefore, in a heating box that supplies microwaves inside, the electric conduction pitch is λ / 4− (E + 2t 1 ), and there are two rows A in the radio wave transmitting direction with respect to electric wave leakage from the inner corner of the heating box to the outside. Since the pitch is arranged, it is possible to effectively attenuate the radio wave leakage due to the heat generation and burning of the coating film. In addition, the caulking strength can be secured without any disconnection due to thermal expansion.
本発明の切断絞り出しカシメ加工の方法は、第３図
（ａ）に示すように、塗装されたフラットな塗装鋼板天
板6b及び後板８の接合部にダイ９のストレートピン10と
スプリング11で保持されたブレード12を当てた後、パン
チ13側が下降し押え具14で接合部を押えながら、パンチ
13を下降加圧することにより、接合部を切断した後、さ
らにパンチを加圧すると同時に拡げることにより、第３
図（ｂ）の如く鋼板の切断部がダイ９で押しつぶされる
ことになり切断面より拡げられることになる。この拡げ
られた部分が機械的結合の機能を果す。As shown in FIG. 3 (a), the method of cutting and squeezing caulking according to the present invention uses a straight pin 10 of a die 9 and a spring 11 at a joint between a painted flat coated steel sheet top plate 6b and a rear plate 8. After hitting the held blade 12, the punch 13 side descends and presses the joining part with the presser tool 14 while punching.
After the joint is cut by downwardly pressing 13, the punch is further pressed and at the same time expanded, so that the third
As shown in FIG. 3B, the cut portion of the steel plate is crushed by the die 9 and expanded from the cut surface. This expanded part serves the function of mechanical coupling.
第４図は、本発明の他の実施例を示すもので、接合部
Ａの切断方向を交互に90゜回転させたもので、切断方向
の接合強度の改善を図り、接合部の強度を上げることが
できるものである。FIG. 4 shows another embodiment of the present invention in which the cutting direction of the joint portion A is alternately rotated by 90 ° to improve the joint strength in the cutting direction and increase the strength of the joint portion. Is something that can be done.
第５図（ａ）は、調理機器の他の一例としてヒータ付
電子レンジ内箱の部品構成を略図的に示す斜視図であ
る。内箱は、天板6,後板８に天板付属板16,後外板17の
３枚を重合した構成になっている。FIG. 5 (a) is a perspective view schematically showing a component structure of a microwave oven-equipped box with a heater as another example of the cooking appliance. The inner box has a structure in which a top plate 6, a rear plate 8, and a top plate attachment plate 16 and a rear outer plate 17 are superposed.
第５図（ｂ）は、天板６と天板付属板16と底板７の接
合部6a,7a,17a,胴部と後板８と後外板17の接合部6b,7b
を第６図で示す切断絞り出しカシメ加工後の内箱を示し
た斜視図である。FIG. 5 (b) shows the joints 6a, 7a, 17a of the top plate 6, the top plate attachment plate 16 and the bottom plate 7, the joints 6b, 7b of the body part, the rear plate 8 and the rear outer plate 17.
FIG. 7 is a perspective view showing the inner box after cutting and squeezing and caulking shown in FIG. 6.
第６図（ａ）〜（ｄ）は、底板７と後板８と後外板17
との接合部分を示す部分切欠断面図である。FIGS. 6A to 6D show a bottom plate 7, a rear plate 8 and a rear outer plate 17.
It is a partial cutaway sectional view showing a joined portion with.
この３枚カシメは、前記の２枚カシメと同様に、切断
絞り出しカシメ加工後、カシメ絞り出し幅Ｆ寸法が Ｆ≧Ａ＋2/3（t1＋t2＋t3） になるように、カシメ圧着厚さＧ寸法を Ｃ≦0.8（t1＋t2＋t3） にし、さらに圧着深さＨ寸法を Ｈ≒t1＋t2＋t3 に設定することにより、確実な結合が図れるものであ
る。The three caulking, as in the two crimping said, after the crimping process squeezed off, as caulking squeezed width dimension F is F ≧ A + 2/3 ( t 1 + t 2 + t 3), crimping crimp thickness G By ensuring that the dimension is C ≦ 0.8 (t 1 + t 2 + t 3 ), and the crimping depth H dimension is H≈t 1 + t 2 + t 3 , reliable connection can be achieved.
ただし、Ｆはカシメ絞り出し幅,Gはカシメ圧着厚さ,H
はパンチ圧着深さ,t1は底板７の板厚,t2は後板８の板
厚,t3は後外板17の板厚である。However, F is the crimping squeeze width, G is the crimping crimp thickness, H
Is the punch pressing depth, t 1 is the thickness of the bottom plate 7, t 2 is the thickness of the rear plate 8, and t 3 is the thickness of the rear outer plate 17.
また、パンチ切断底長さＥの両脇には、カシメ底部よ
りほぼ45゜の傾斜で立上る傾斜部ルを設けたため、切断
が容易になるとともに、確実な結合が得られる。Further, since both sides of the punch cutting bottom length E are provided with inclined portions which rise at an inclination of about 45 ° from the caulking bottom portion, the cutting is facilitated and a reliable connection is obtained.
このようにすれば、接合部が相対向する２辺で切断し
た中間部をその板厚方向に押し出し、かつ、この押し出
した部分を圧縮して形成した機械的結合部の４隅に、４
ケ所の｛t1×t2＋t3（t1＋t2）｝の電気導通部を確保で
きると同時に、電波漏れに対しても、２枚の結合と同様
の効果が得られる。With this configuration, the intermediate portion cut along the two sides where the joint portion is opposed to each other is extruded in the plate thickness direction, and the extruded portion is compressed to form four corners of the mechanical joint portion.
The electric conduction part of {t 1 × t 2 + t 3 (t 1 + t 2 )} can be secured at the same place, and at the same time, the same effect as the coupling of two sheets can be obtained with respect to radio wave leakage.
発明の効果 以上のように本発明は、内部にマイクロ波を供給する
加熱箱において、この加熱箱は複数個の金属製部材を、
その各々の接合部において互いに接合する構成とし、前
記接合部には、この加熱箱の内隅辺から外側方向に異な
る距離に複数個の電気導通部を形成することにより、電
波漏れを効果的に解消することができまた、熱膨張によ
る外れもなくカシメ強度を確保できる。さらに、接合部
の塗装マスキング処理，事前プレス加工が不要であり、
また、締結ビス等も不要なため、作業性の向上およびコ
スト低減に大いに役立つものである。EFFECTS OF THE INVENTION As described above, the present invention is a heating box for supplying microwaves to the inside thereof, wherein the heating box includes a plurality of metal members,
The respective joining portions are joined to each other, and a plurality of electrical conducting portions are formed at the joining portions at different distances from the inner corner side of the heating box in the outer direction, thereby effectively preventing the electric wave leakage. In addition, the caulking strength can be secured without being dislocated due to thermal expansion. Furthermore, there is no need for paint masking at the joints and pre-pressing,
Further, since fastening screws and the like are unnecessary, it is very useful for improving workability and reducing costs.
第１図（ａ）は本発明の一実施例における調理機器の内
箱の分解斜視図、第１図（ｂ）は同外観斜視図、第２図
（ａ）は同要部斜視図、第２図（ｂ）は第２図（ａ）の
イ−イ′断面図、第２図（ｃ）は第２図（ａ）の要部正
面図、第２図（ｄ）は第２図（ａ）のロ−ロ′断面図、
第３図（ａ），（ｂ）は本発明の加工説明図、第４図は
本発明の他の実施例の要部斜視図、第５図（ａ）は本発
明の他の実施例における調理機器の内箱の分解斜視図、
第５図（ｂ）は同外観斜視図、第６図（ａ）は同要部斜
視図、第６図（ｂ）は第６図（ａ）のヘ−ヘ′断面図、
第６図（ｃ）は第６図（ａ）の要部正面図、第６図
（ｄ）は第６図（ａ）のト−ト′断面図、第７図は従来
の内箱の分解斜視図、第８図は同接合要部断面図、第９
図（ａ），（ｂ），第10図（ａ），（ｂ）はそれぞれ従
来の他の接合要部の一部切欠斜視図および断面図であ
る。 ６……天板、6a,6b……天板接合部、７……底板、7a,7b
……底板接合部、８……後板。FIG. 1 (a) is an exploded perspective view of an inner box of a cooking appliance according to an embodiment of the present invention, FIG. 1 (b) is an external perspective view of the same, and FIG. 2 (a) is a perspective view of relevant parts. 2 (b) is a cross-sectional view taken along the line II 'of FIG. 2 (a), FIG. 2 (c) is a front view of the main part of FIG. 2 (a), and FIG. 2 (d) is FIG. a) sectional view taken along the line
FIGS. 3 (a) and 3 (b) are explanatory views of processing of the present invention, FIG. 4 is a perspective view of essential parts of another embodiment of the present invention, and FIG. 5 (a) is another embodiment of the present invention. An exploded perspective view of the inner box of the cooking appliance,
FIG. 5 (b) is a perspective view of the same, FIG. 6 (a) is a perspective view of relevant parts, and FIG. 6 (b) is a cross-sectional view taken along the line H--H 'of FIG. 6 (a).
FIG. 6 (c) is a front view of a main part of FIG. 6 (a), FIG. 6 (d) is a sectional view taken along the line of FIG. 6 (a), and FIG. FIG. 8 is a perspective view, FIG.
FIGS. (A), (b), and FIGS. 10 (a), (b) are a partially cutaway perspective view and a cross-sectional view of another conventional joint main part, respectively. 6-top plate, 6a, 6b-top plate joint, 7-bottom plate, 7a, 7b
…… Bottom plate joint, 8 …… Rear plate.
───────────────────────────────────────────────────── フロントページの続き (72)発明者 小野 哲司 大阪府門真市大字門真1006番地 松下電 器産業株式会社内 (56)参考文献 実開 昭62−43203（ＪＰ，Ｕ) ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuji Ono 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) References: 62-43203 (JP, U)
Claims (7)
製部材よりなる加熱箱において、加熱箱は夫々の前記金
属部材を互いに接合する接合部と、前記接合部に設けら
れた複数個の機械的結合部および複数個の電気導通部と
を有し、前記複数個の機械的結合部は複数枚の金属製部
材の接合部を重合し、相対向する２辺で切断した中間部
をその板厚方向に押し出し、この押し出した部分を圧縮
して形成すると共に、前記複数個の電気導通部は前記切
断した中間部の押し出しにより、夫々の金属製部材の切
断面と他の金属製部材の切断面とが接合して形成される
構成とした電子レンジ用の加熱箱。1. A heating box comprising a plurality of metal members for supplying microwaves to the inside, wherein the heating box has a joint portion for joining the metal members to each other, and a plurality of joint portions provided at the joint portion. A mechanical coupling portion and a plurality of electrical conducting portions, wherein the plurality of mechanical coupling portions are formed by superposing a joint portion of a plurality of metal members and cutting an intermediate portion cut at two opposite sides. The metal sheet is extruded in the plate thickness direction, the extruded portion is compressed, and the plurality of electrically conductive portions are extruded from the cut intermediate portion to form a cut surface of each metal member and another metal member. A heating box for a microwave oven configured to be joined with a cut surface.
部を設けた事を特徴とする請求項１記載の電子レンジ用
の加熱箱。2. The heating box for a microwave oven according to claim 1, wherein a mechanical coupling portion is provided in the vicinity of the plurality of electric conduction portions.
なくとも一辺に形成され、前記電気導通部は、この一辺
の長さ方向に平行に少なくとも２列配列したことを特徴
とする請求項１記載の電子レンジ用の加熱箱。3. The joint portion is formed on at least one side in the depth, width, and height directions of the heating box, and the electric conducting portions are arranged in at least two rows parallel to the length direction of the one side. The heating box for a microwave oven according to claim 1.
部を設けた事を特徴とする請求項２または請求項３記載
の電子レンジ用の加熱箱。4. The heating box for a microwave oven according to claim 2, wherein a mechanical coupling portion is provided between the plurality of electric conducting portions.
耐腐食性塗膜を施し、加熱箱の内側に配設して形成した
事を特徴とする請求項１記載の電子レンジ用の加熱箱。5. At least one of the plurality of metallic members comprises:
The heating box for a microwave oven according to claim 1, wherein the heating box is provided with a corrosion resistant coating and is disposed inside the heating box.
部分で構成してなる請求項１記載の電子レンジ用の加熱
箱。6. The heating box for a microwave oven according to claim 1, wherein the plurality of electric conducting portions are formed by a thickness portion of a metal member.
の重合部の複数の箇所を相対向する２辺で切断し、切断
した中間部をその板厚方向に押し出すと共に、この押し
出した部分を圧縮することにより前記金属製部材同志を
結合する電子レンジ用の加熱箱の製造方法。7. A joint portion of a plurality of metal members is superposed, a plurality of portions of the superposed portion are cut along two sides facing each other, and the cut intermediate portion is extruded in the plate thickness direction and the extruded portion is extruded. A method of manufacturing a heating box for a microwave oven, wherein the metal members are joined together by compressing the opened portions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63182351A JP2529358B2 (en) | 1987-07-31 | 1988-07-21 | Heating box for microwave oven |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62-192934 | 1987-07-31 | ||
| JP19293487 | 1987-07-31 | ||
| JP63182351A JP2529358B2 (en) | 1987-07-31 | 1988-07-21 | Heating box for microwave oven |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01107017A JPH01107017A (en) | 1989-04-24 |
| JP2529358B2 true JP2529358B2 (en) | 1996-08-28 |
Family
ID=26501180
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63182351A Expired - Lifetime JP2529358B2 (en) | 1987-07-31 | 1988-07-21 | Heating box for microwave oven |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2529358B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100731369B1 (en) | 2005-07-05 | 2007-06-21 | 엘지전자 주식회사 | Jointing structure for Cooking equipment |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4572706B2 (en) * | 2004-10-27 | 2010-11-04 | パナソニック株式会社 | High frequency heating device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6243203U (en) * | 1985-09-03 | 1987-03-16 |
-
1988
- 1988-07-21 JP JP63182351A patent/JP2529358B2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100731369B1 (en) | 2005-07-05 | 2007-06-21 | 엘지전자 주식회사 | Jointing structure for Cooking equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01107017A (en) | 1989-04-24 |
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